To many readers, "Calculating a growth rate" may sound like an intimidating mathematical process. In actuality, growth rate calculation can be remarkably simple. Basic growth rates are simply expressed as the difference between two values in time in terms of a percentage of the first value. Below, you'll find simple instructions for this basic calculation as well as information about

Not sure how to change a time in minutes to a time in hours? Not to worry! It's easy to make this conversion task in just a few simple steps. As a general rule, dividing your number of minutes by 60 will give you the same time in hours. This is because there are exactly 60 minutes in an hour.

A histogram is a useful graph that shows you how a picture's brightness correlates to the number of pixels in it. They can be found on some camera settings and on your photo editing software. Histograms most often show up as blue, red, or green peaks depending on which tones are the most present in your photo. By looking at the histogram's peaks, or the upside-down 'U' shapes, you can

If you're working with combinatorics and probability, you may need to find the number of permutations possible for an ordered set of items. A permutation is an arrangement of objects in which the order is important (unlike combinations, which are groups of items where order doesn't matter). You can use a simple mathematical formula to find the number of different possible ways to order

Finding the area of a circle is a straightforward calculation if you know the length of the circle’s radius. If you don’t know the radius, however, you can still calculate the area if you are given the length of the circle’s circumference, or perimeter. You can use a two-step process, solving first for the radius using the formula for the circumference: circumference=2π(r){\displaystyle

Division is one of the 4 major operations in arithmetic, alongside addition, subtraction, and multiplication. In addition to whole numbers, you can divide decimals, fractions, or exponents. You can do long division or, if one of the numbers is a single digit, short division. Start by mastering long division, though, because it is the key to the entire operation.

The row-echelon form of a matrix is highly useful for many applications. For example, it can be used to geometrically interpret different vectors, solve systems of linear equations, and find out properties such as the determinant of the matrix.

Unlike a straight line, a curve's slope constantly changes as you move along the graph. Calculus introduces students to the idea that each point on this graph could be described with a slope, or an "instantaneous rate of change." The tangent line is a straight line with that slope, passing through that exact point on the graph. To find the equation for the tangent, you'll need to know

Want to improve your nerd skills? Learn the counting system computers use for all their calculations. It looks strange at first, but you only need a few rules and a little practice to count in binary.

A rhombus is a parallelogram with four congruent sides. It does not have to have right angles. There are three formulas for finding the area of a rhombus. Just follow these steps if you want to know how to do it.